摘要
通过对小麦群体温度的多年观测，发现自然界存在冷温群体，其冠层温度偏低，叶片功能期较长，源较充足，对灌浆甚为有利。尤其这类群体中的冷型小麦，冷域发达，蒸腾旺盛，净光合率较高，更是利于子位充实。这种类型小支的发现为优良株系、品系、品种的选择提供了重要的理论和实践依据。
On the basis of observation with the temperature of wheat population for many years,low tem-perature population has been discovered in natural word.The population has a lower temperature with covering layer，longer functional period with leaf and fuller source, which is very favourable for milk-filling. Especially cold typal wheat in preceding population has a long time limits with tempera-ture which is lower than that of control wheat，strong evaporation and higher net photosynthetic rate，which is particularly favourable to enrich grain， Discovery of the typal wheat provides important theo-ry and practice bases for the selection of excellent parentage, line and variety.
出处
《中国农业气象》
CSCD
北大核心
1995年第4期1-6,共6页
Chinese Journal of Agrometeorology
关键词
小麦
冷温群体
冷型
第二热源
蒸腾
光合率
: Wheat population with low temperature Culd typal wheat second heat sourceEvapration photosynthesis
